AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Montmorillonite pseudomorph after Natrolite

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Montmorillonite pseudomorph after Natrolite from Dean Quarry, St. Keverne, Cornwall, England

 
Montmorillonite pseudomorph after Natrolite from Dean Quarry, St. Keverne, Cornwall, England

Montmorillonite pseudomorph after Natrolite from Dean Quarry, St. Keverne, Cornwall, England

DESCRIPTION:No. 24396
Mineral:Montmorillonite pseudomorph after Natrolite
Locality:Dean Quarry, St. Keverne, Cornwall, England
Description:Vein in matrix that had an internal cavity allowing formation of complete crystals of natrolite. All natrolite has now been replaced with pseudomorphs of montmorillonite, but the original crystal forms are distinct. Ex. Robert Karr collection (California)
Overall Size:8x8x3 cm
Crystals:5-11 mm
Status: Sold - Posted here for reference only
Buy similar: Minerals from UK, Iceland, Greenland > Pseudomorphs (False Form)

 

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